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1
2022 MMATHS Individual p1 - 3x3 linear system
2022 MMATHS Individual p1 - 3x3 linear system
Source:
October 1, 2023
algebra
MMATHS
Problem Statement
Suppose that
a
+
b
=
20
a + b = 20
a
+
b
=
20
,
b
+
c
=
22
b + c = 22
b
+
c
=
22
, and
c
+
a
=
2022
c + a = 2022
c
+
a
=
2022
. Compute
a
−
b
c
−
a
\frac{a-b}{c-a}
c
−
a
a
−
b
.
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